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Finding the Fourth Proportional to 269,820.79, 404,660.71 and 80,230.11

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Solution

The fourth proportional to 269,820.79, 404,660.71 and 80,230.11 is: 120,324.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,820.79 : 404,660.71 = 80,230.11 : x
  2. Step 2: Convert to fraction form
    269,820.79/404,660.71 = 80,230.11/x
  3. Step 3: Cross multiply
    269,820.79x = 404,660.71 × 80,230.11
  4. Step 4: Simplify right side
    269,820.79x = 32,465,973,275.98
  5. Step 5: Solve for x
    x = 32,465,973,275.98/269,820.79
  6. Step 6: Final answer
    x = 120,324.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.